The only reason that Ubuntu has a bit of name recognition is because Ubuntu comes pre-installed on some laptops that are actually in stores where people can see it. Some folks even bought Ubuntu-running computers.

That and Mark Shuttleworth , the founder, was in space. And Dell sells them. "Gotta get a Dell dude". Wonder what the Linux commercial would sound like? "Gotta get a Dell with Linux if you can find it on our website, Dude"